MenuRootSubComponent.c

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class MenuRootSubComponent: ScriptedWidgetComponent
{
    private Widget m_Widget;
    private MenuRootComponent m_Root;
    
    Widget GetWidget()
    {
        return m_Widget;
    }
    
    MenuRootBase GetMenu()
    {
        if (!m_Root)
            return null;
        
        return m_Root.GetMenu();
    }
    
    MenuRootComponent GetRootComponent()
    {
        return m_Root;
    }
    
    protected bool IsUnique()
    {
        return true;
    }
    
    void HandlerAttachedScripted(Widget w);
    
    override void HandlerAttached(Widget w)
    {
        if (SCR_Global.IsEditMode())
            return; //--- Run-time only
        
        m_Widget = w;
        
        m_Root = MenuRootComponent.GetRootOf(m_Widget);
        if (IsUnique())
        {
            if (!m_Root.FindComponent(Type()))
            {
                m_Root.AddComponent(this);
            }
            else
            {
                Print(string.Format("Duplicate instance of UI component %1 found on widget '%2'! The component is marked as unique, only one instance is allowed.", Type(), w.GetName()), LogLevel.WARNING);
                return;
            }
        }
        
        if (m_Root.GetMenu())
        {
            //--- Execute after delay to make sure all new components are registered first
            GetGame().GetCallqueue().CallLater(HandlerAttachedScripted, 0, false, w);
        }
    }
    
    override void HandlerDeattached(Widget w)
    {
        if (m_Root)
            m_Root.RemoveComponent(this);
    }
};